Supernatural sleuths spent the night at Headstone Manor to investigate ghostly goings-on that have spooked countless people. The London Paranormal Society carried out a ground-breaking experiment at the building, home to Harrow Museum, on June 28 to see if they could detect or explain mysterious noises and sights. Lottie Collins, museum manager, said: "Incidents of strange occurrences have long been noted by both staff and visitors at Harrow Museum, where Headstone Manor is located. "Apparitions, voices and moving objects have all been reported, especially since the recent restoration of the ancient parts of the building which is thought to have caused a disturbance." Headstone Manor is a Grade I listed property once owned by Henry VIII and is the oldest timber-framed house in Middlesex, having been built in 1310. Twenty-five people, including the society's event manager Ian Shillito and his team of six investigators, Ms Collins and several other paying guests, monitored six rooms between 9pm and 4pm. Mr Shillito - a self-confessed 'sensitive' or psychic - said: "We heard some doors banging and, in the middle of the night, we did have one particular door slam shut in front of five or six people. There were various light anomalies and various people saw lights flash. "Wooden houses normally creak when they cool down but this house didn't, even though there was a drop in temperature." Mr Shillito explained: "We're not 100 per cent scientific - we're a public events company that tries to give a taste of a ghost investigation. "We have a room which we use as a base and we go on hour-long expeditions while all the lights are turned off. "Lots of sightings are made in daytime but if we conduct an investigation at night, you remove one of the senses - your eyes - and your other senses work overtime and you become more attuned to the atmosphere. "Half the time we're sitting there and half the time we're monitoring the equipment: CCTV cameras, thermometers and EMS (electromagnetic static) monitor. "It's great fun but there is a sense of seriousness because we do actually want to test out if the place is really haunted. But you need to study a location for more than seven hours to come to a conclusion." He said: "It was a great success. It was fantastic to be in this Grade I listed building and I would love to come back. It ticks all the ghost-hunting boxes." The London Paranormal Society will return to Harrow Museum and Heritage Centre, in Pinner View, Harrow, on the Hallowe'en weekend but this time will investigate not just Headstone Manor but all the buildings on the site.